Root grub: Leucopholis burmeisteri Symptom of damage:
- Grubs feed on growing roots
- Infested palms show a sickly appearance
- Yellowing of leaves
- Tapering of stem and reduction in yield.
Identification of the pest
- Adult beetle is chestnut brown in colour.
Management:
- Collection and destruction of adult beetles
- Digging and forking of the soil
- Addition of organic amendments and anti-feedants (neem, pongamia and oilcake)
- Application of (Thimet 10G) @ 15g per palm give effective control
- Soil application of phorate around the plant twice a year Before onset of southeast monsoon (May)
- After the monsoon (Sep-October)
- In severely infected gardens, the soil should be drenched with eco-friendly insecticides
- Before onset of southeast monsoon (May)